Treatment of leachate by electrocoagulation using aluminum and iron electrodes
| Autor: | Fatih Ilhan, Ugur Kurt, Omer Apaydin, M. Talha Gönüllü |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Flocculation
Environmental Engineering Turkey Iron Health Toxicology and Mutagenesis medicine.medical_treatment Waste Disposal Fluid Electrocoagulation Ammonia chemistry.chemical_compound Electrochemistry medicine Environmental Chemistry Leachate Electrodes Waste Management and Disposal Chromatography Sulfates Chemical oxygen demand Temperature Hydrogen-Ion Concentration Pulp and paper industry Pollution Refuse Disposal chemistry Electrode Costs and Cost Analysis Aeration Current density Water Pollutants Chemical Aluminum |
| Zdroj: | Journal of Hazardous Materials. 154:381-389 |
| ISSN: | 0304-3894 |
| DOI: | 10.1016/j.jhazmat.2007.10.035 |
| Popis: | In this paper, treatment of leachate by electrocoagulation (EC) has been investigated in a batch process. The sample of leachate was supplied from Odayeri Landfill Site in Istanbul. Firstly, EC was compared with classical chemical coagulation (CC) process via COD removal. The first comparison results with 348 A/m 2 current density showed that EC process has higher treatment performance than CC process. Secondly, effects of process variables such as electrode material, current density (from 348 to 631 A/m 2 ), pH, treatment cost, and operating time for EC process are investigated on COD and NH 4 -N removal efficiencies. The appropriate electrode type search for EC provided that aluminum supplies more COD removal (56%) than iron electrode (35%) at the end of the 30 min operating time. Finally, EC experiments were also continued to determine the efficiency of ammonia removal, and the effects of current density, mixing, and aeration. All the findings of the study revealed that treatment of leachate by EC can be used as a step of a joint treatment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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